785
FZUS52 KJAX 291849
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
249 PM EDT Wed Jul 29 2026

Atlantic Coastal Waters from Altamaha Sound GA to Flagler Beach
FL out to 60 nm.

Seas are provided as a range of the average height of the highest
1/3 of the waves, along with the occasional height of the average
highest 1/10 of the waves.

AMZ400-301000-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
249 PM EDT Wed Jul 29 2026

.SYNOPSIS...

Active weather pattern develops today with a surge of southwest
winds to Small Craft Exercise Caution levels which will continue
through tonight. A frontal boundary will then sink into the Deep
South late this week, with this feature becoming stationary during
the weekend. Strong to severe thunderstorms will be possible well in
advance of this front this afternoon and evening, with stronger
storms potentially producing damaging wind gusts, waterspouts,
frequent lightning strikes, and torrential downpours. Scattered to
numerous thunderstorms will continue across the northeast Florida
waters on Thursday and Friday, with less coverage currently forecast
for the Georgia waters. Waves of showers and thunderstorms will then
overspread all of our local waters during the upcoming weekend.
Outside of expected thunderstorm activity, southwesterly winds will
prevail with Caution conditions likely through the upcoming weekend.


.GULF STREAM...

The approximate location of the west wall of the Gulf Stream as of
Jul 29, 2026 at 0000 UTC...

 50 nautical miles east of Flagler Beach.
 58 nautical miles east of Saint Augustine Beach.
 70 nautical miles east southeast of Jacksonville Beach.
 66 nautical miles east southeast of St Simons Island.

This data derived from NCEP Global RTOFS model.


$$

AMZ450-301000-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
249 PM EDT Wed Jul 29 2026

...SEVERE THUNDERSTORM WATCH 532 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THURSDAY
MORNING...

.TONIGHT...West winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 2 feet at 4 seconds. Intracoastal waters a
moderate chop. A chance of showers and thunderstorms this
evening.
.THURSDAY...West winds 10 to 15 knots, becoming south 5 to
10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: West
2 feet at 4 seconds. Intracoastal waters a moderate chop. A
slight chance of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 4 seconds. Intracoastal
waters light chop. A chance of showers and thunderstorms in the
evening.
.FRIDAY...Southwest winds 5 to 10 knots, becoming southeast in
the afternoon. Seas around 2 feet. Wave Detail: South 2 feet at
4 seconds. Intracoastal waters light chop. A slight chance of
showers and thunderstorms in the morning, then a chance of
showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 3 seconds. Intracoastal
waters light chop. A chance of showers and thunderstorms in the
evening.
.SATURDAY AND SATURDAY NIGHT...Southwest winds 10 to 15 knots.
Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds.
Intracoastal waters a moderate chop. A chance of showers and
thunderstorms.
.SUNDAY THROUGH MONDAY...South winds 15 to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet. Intracoastal waters choppy.
Showers with thunderstorms likely.

Winds and waves higher in and near thunderstorms.

$$

AMZ452-454-301000-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
249 PM EDT Wed Jul 29 2026

...SEVERE THUNDERSTORM WATCH 532 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THURSDAY
EVENING...

.TONIGHT...West winds 15 to 20 knots. Seas 2 to 3 feet. Wave
Detail: Southwest 3 feet at 4 seconds. Intracoastal waters
choppy. A chance of showers. A chance of thunderstorms, mainly
this evening.
.THURSDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southwest 3 feet at 4 seconds. Intracoastal waters a
moderate chop. A slight chance of showers and thunderstorms in
the morning, then a chance of showers and thunderstorms in the
afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southwest 2 feet at 4 seconds. Intracoastal
waters a moderate chop. A chance of showers. A chance of
thunderstorms, mainly in the evening.
.FRIDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: Southwest 2 feet at
3 seconds. Intracoastal waters light chop. A chance of
thunderstorms. A chance of showers in the morning, then showers
in the afternoon.
.FRIDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 3 seconds. Intracoastal
waters light chop. A chance of showers and thunderstorms in the
evening, then a slight chance of showers after midnight.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South
2 feet at 3 seconds. Intracoastal waters a moderate chop. A
chance of showers with a slight chance of thunderstorms in the
morning, then showers and thunderstorms likely in the afternoon.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to
3 feet. Intracoastal waters a moderate chop. A chance of showers
and thunderstorms, mainly in the evening.
.SUNDAY...Southwest winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Intracoastal waters choppy. A chance of
showers and thunderstorms in the morning, then showers and
thunderstorms likely in the afternoon. A slight chance of showers
and thunderstorms through the night.
.MONDAY...South winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Intracoastal waters a moderate chop. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon. A slight
chance of thunderstorms in the evening. A slight chance of
showers through the night.

Winds and waves higher in and near thunderstorms.

$$

AMZ472-474-301000-
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
249 PM EDT Wed Jul 29 2026

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THURSDAY
EVENING...

.TONIGHT...West winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southwest 4 feet at
5 seconds. A chance of showers and thunderstorms.
.THURSDAY...Southwest winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: Southwest 4 feet at 5 seconds. A slight
chance of showers and thunderstorms in the morning, then a chance
of showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to
3 feet. Wave Detail: Southwest 3 feet at 4 seconds. A chance of
showers and thunderstorms.
.FRIDAY...West winds 10 to 15 knots, becoming south 5 to 10 knots
in the afternoon. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet
at 4 seconds. A chance of thunderstorms. A chance of showers in
the morning, then showers likely in the afternoon.
.FRIDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet. Wave Detail: Southwest 2 feet at 4 seconds. Showers
likely with a chance of thunderstorms in the evening, then a
chance of showers with a slight chance of thunderstorms after
midnight.
.SATURDAY AND SATURDAY NIGHT...Southwest winds 10 to 15 knots.
Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South
3 feet at 4 seconds and east 2 feet at 9 seconds. Showers likely
with a chance of thunderstorms.
.SUNDAY THROUGH MONDAY...South winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. A chance of showers and
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

AMZ470-301000-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
249 PM EDT Wed Jul 29 2026

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THURSDAY
MORNING...

.TONIGHT...West winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Wave Detail: Southwest 3 feet at
5 seconds. Showers likely with a chance of thunderstorms this
evening, then a slight chance of showers and thunderstorms after
midnight.
.THURSDAY...West winds 10 to 15 knots, becoming southwest 5 to
10 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: Southwest 3 feet at 5 seconds.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: South 2 feet at 5 seconds. A chance of
showers and thunderstorms.
.FRIDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: South 2 feet at
5 seconds. A slight chance of showers and thunderstorms.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of
showers and thunderstorms, mainly in the evening.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail: South
2 feet at 6 seconds. A slight chance of showers and thunderstorms
in the morning, then a chance of showers and thunderstorms in the
afternoon.
.SATURDAY NIGHT...Southwest winds around 15 knots. Seas 2 to
4 feet, occasionally to 5 feet. Showers likely with a chance of
thunderstorms.
.SUNDAY...Southwest winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet, building to 4 to 6 feet, occasionally to
8 feet. Showers likely with a chance of thunderstorms.
.MONDAY...South winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. A chance of showers. A chance of
thunderstorms .

Winds and seas higher in and near thunderstorms.

$$